!FridgeBrilliance
* When the first game was announced, some fans were wondering why [[Franchise/StreetFighter Chun-Li]] and [[VideoGame/{{Darkstalkers}} Morrigan Aensland]] were paired with each other rather than [[Franchise/StreetFighter Cammy White]] and [[VideoGame/{{Darkstalkers}} Lilith]], respectively, just like they did in ''VideoGame/NamcoXCapcom''. Both of them are the {{Breakout Character}}s of their respective franchises.
* When you really think about it, the ''VideoGame/{{Tekken}}'' characters fit here better than most FightingGame characters on the roster. After all, their world has demons, dinosaurs and robots, making it very possible for them to come out on top against these curiosities. Hell, the FinalBoss of ''Tekken 6'' is an ''[[DidYouJustPunchOutCthulhu Egyptian god]]'', of all things!
* [[VideoGame/XenobladeChronicles1 Fiora]] might seem like a logical choice for the sequel given Monolith Soft is one of the developers from this series and ''VideoGame/XenobladeChronicles1'', but how do [[VideoGame/FireEmblemAwakening Chrom and Lucina]] fit in? Simply put, the [[VideoGame/FireEmblemAwakening Outrealm Gates]] extends to other dimensions beyond ''Franchise/FireEmblem''. In fact, this is {{Lampshaded}} when [[VideoGame/FireEmblemAwakening Tiki]] uses the Gates to send the party to [[VideoGame/FireEmblemAwakening Ylisse]] (but not before [[HotSpringsEpisode the ladies get a dip in the Outrealm hot springs]]).
* [[VideoGame/TalesOfVesperia Flynn Scifo]] getting bumped up to being a Pair Unit in the sequel with [[VideoGame/TalesOfVesperia Yuri Lowell]] makes sense when you realize he becomes a full-fledged party member in the Sony Platform/PlayStation3 UpdatedRerelease of ''VideoGame/TalesOfVesperia''.
* The ColorCodedForYourConvenience intro of the sequel, where some of the party members have a different glow before the opening ends, are thoroughly justified when you consider how each behave from their respective video games.
** Green: Yuri, Chrom and [[VideoGame/SakuraWars Ichiro Oogami]] - Protagonists of HighFantasy {{Eastern RPG}}s
** Purple: [[VideoGame/DevilMayCry Dante]], [[Franchise/DotHack Haseo]] and [[VideoGame/{{Darkstalkers}} Demitri Maximoff]] - AntiHero with a darkness-based motif
** Red: [[Franchise/StreetFighter Ryu]], [[VideoGame/{{Tekken}} Jin Kazama]] and [[VideoGame/VirtuaFighter Akira Yuki]] - TheHero[=/=]{{Mascot}} representative of each company's signature FightingGame franchises
** Pink: [[VideoGame/{{Strider}} Strider Hiryu]] and [[VideoGame/{{Shinobi}} Hotsuma]] - {{Ninja}}s
** Orange: [[VideoGame/LikeADragon Kazuma Kiryu]] and [[Franchise/ResidentEvil Chris Redfield]] - Gun-toting BadassNormal zombie slayers
** Blue: [[VideoGame/GodEaterBurst Ciel Alencon]] and [[VideoGame/ResonanceOfFate Zephyr]] - Teenagers working as mercenaries from [[AfterTheEnd post-apocalyptic futures]]
** Yellow: [[VideoGame/MegaManX X]], Fiora and [[VideoGame/{{Xenosaga}} KOS-MOS]] - [[RidiculouslyHumanRobot Androids/robots]]
* [[VideoGame/LikeADragon Kazuma Kiryu and Goro Majima]] are often paired with [[Franchise/AceAttorney Phoenix Wright and Maya Fey]] in promotional materials and within the story of ''Brave New World'' (Phoenix gets Majima acquitted of his actions from ''VideoGame/Yakuza4'' and the latter is indebted). Both series have had film adaptations of their first games directed by Creator/TakashiMiike.
** Adding to this, Hiroki Narimiya, the actor who voices Masayoshi Tanimura (one of the protagonists of ''VideoGame/Yakuza4''), portrays Phoenix in the aforementioned movie adaptation.
* Why does X have the "{{Shoryuken}}" in the sequel in addition to the "[[KamehameHadouken Hadouken]]"? In ''VideoGame/MegaManX2'', the Shoryuken was an EasterEgg in the game, just as the Hadouken was one in ''VideoGame/MegaManX1''.
* Ryu has a RunningGag of suggesting people perform a "[[HurricaneKick Tatsumaki Senpu Kyaku]]" while in mid-air if the party finds itself performing aerial maneuvers. This may be PlayedForLaughs, but recall in the first game, Ichiro ate himself up when he thought some of the cast died from a large fall, unaware that most of them, Ryu and Ken included, had ways to control their movement in the air. Ryu's suggestions to perform the technique is his way of ensuring the party would not be placed in the same situation as before.
* [[VideoGame/NamcoXCapcom Xiaomu]] ragging on [[OriginalGeneration Sheath]] about the "Japanese [she] picked up from the Internet" in the localization becomes hilarious when you take into account Xiaomu herself is already a walking, talking ShoutOut factory. It's not too far-fetched to believe Xiaomu has already met people like Sheath before at some kind of {{Anime}}, {{Manga}}, or video game convention.
* How can the party easily damage [[VideoGame/XenobladeChronicles1 Mechon]] in the sequel despite the [[InfinityPlusOneSword Monado]] and Anti-Mechon weaponry being the only things capable of leaving more than a dent? That only applies to beings from [[VideoGame/XenobladeChronicles1 Bionis]], and since the party is comprised of people from other worlds, of course they would be using weapons that aren't made by Homs, which prove ineffective against Mechon.
* Why are [[VideoGame/EndlessFrontier Haken Browning]] and [[VideoGame/SuperRobotWars Sanger Zonvolt]] absent in the sequel? ''[[VideoGame/SuperRobotWarsOriginalGeneration Super Robot Wars Original Generation: The Moon Dwellers]]'' [[https://www.facebook.com/180223srw/videos/1293154017362717/ justifies this]]: Haken is accidentally sent into Sanger's dimension along with him. Since the "Cross Gates" are what bridges both characters' respective universes, and without access to one by the end of ''The Moon Dwellers'', Haken is unable to participate in ''Brave New World'' because he's literally TrappedInAnotherWorld.
* [[VideoGame/MegaManClassic Mettaurs]] are defensively strong when players face them: getting to hit them at all can be a chore. However, when Mettaurs attack allied characters and players perform a counter attack, they become much easy to destroy, usually taking no more than one or two moves to finish them off, exactly like how they function in their [[VideoGame/MegaManClassic home series]].
* Certain characters appear using their non-canon appearances such as ''VideoGame/YakuzaDeadSouls'' and ''Tekken Tag Tournament 2''; they're considered fair game since the series itself is on non-canon territory from the start.
** Then there's the fact these non-canon games are alternate universes to the parent series. The plot of the games just happens to make contact with said splinter universes instead of the "main" one.
* In the [[https://youtu.be/gexwuWa1qfc?t=1m23s sequel's opening sequence]] where Reiji and Xiaomu face off against Saya and Sheath, their positions show something of their character traits. Reiji and Xiaomu are back to back, indicating how long they've been working together in Shinra and that they trust each other to have their backs. Saya and Sheath are face to face, indicating that neither really trust each other and the rather backstabbing[=/=]doublecrossing nature of Ouma.
* In the original ''Project X Zone'', [[Franchise/DotHack Kite]] is paired with his R1 deuteragonist Black Rose. While Black Rose does not come back for ''2'' despite Kite returning, he does get paired with his R''2'' successor: Haseo.
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